Fire-pot for furnaces and stoves.



PATENTBD NOV. 13, 1906.

J. P. KOLLA. FIRE POT FOR PURNACES AND STOVES.

NVENTOR wwf/KMU. BY H fs MJL ATT# APPLICATION FILED MAE. 23. 1906.

Vlg l 65 EA, 2 w

ATTE 5 I @5V/Za@ .zen of the United States, residing at Akron, 1nthecounty of Cuyahoga and State of Ohio,

. use the same.

. fire-pots constructed to provide a free circureplaced after long usageburned out.

Lwithin the walls of the pot to preserve the JOHN P. KOLLA, OF AKRON,OHIO.

FIRE-POT FOR FURNACES AND STOVES.

Specification of Letters Patent.

'Patented Nov. 13, 1 906;

. Application filed March 2S, 1906. Serial No. 307,6.02-

To a/Zl whom; it may concern:

Be 1t lrnownv that I, JOHN P. KoLLA, a citihave invented certain newand. useful Improvements in Fire-Pots for Furnaces and Stoves; -and I dodeclare that the following is a full, clear, and exact description ofthe invention, which will enable others skilled in the art to which itappertains to make and My inventionrelates to {ire-pots for furnaces,and 1s an improvement in that class of lation of air throu h the wallsof the pot, all substantially as sIiown and described, and particularlypointed out in the claims.

My first object is to construct a durable fire-pot adapted to withstandintense heat and which is built with inner removable sections, so thatany one or all of them may be or if broken or I also provide for a freecirculation of air life ofthe pot and its parts.

Al further important feature is embodied in the fire-pot, which providesfor a free and complete distribution of heated air to the fuel withinthe pot from all sides and the full depth thereof, thereby'promotingcombustion from the top downward and from the circumference to thecenter of the pot.

' I also guard against the closing of the airopenings by the ashes orcinders.

I further provide the pot with a waterheating section or coil whichforms a continuation of the pot and affords additional radiatin surface.

In t e accompanying drawings, Figure 1 is a sectional view inperspective of the pot and ring assembled, but without the grate orother parts 4of the furnace. Fig. 2 is a perspective view of a singleplate partially removed and projected in respect to a section of the potand the ears thereon. Fig. 3 is a reduced plan view of the water-coilsection.

My improved fire-pot is adapted to be used wit various styles offurnaces and stoves, and although a easing and grate are not shown itwill be understood that the pot is so equipped, as usual.

In detai pot A comprises a main shell or wall r2, cylindrical in formand taperin slightly in thickness from top to bottom an v Aat differentelevations,

and water-section C are re- 6o with its largest cross-section at itsupper end.

A stepped formation of the upper edge of main wall 2 provides two shouers 3 and 4 upon which innerwall sections B spectively supported. Thusinner-wall senctions B have each an upperoutwardly-extending flange 5,adapte to rest upon shoulder 3, and water-section C has a base rib orextension 6 resting upon shoulder 4 and en- 65 circled upon its outsideby a con 'ng-rib 7 upon potA. The inner face 8 of water-section C isrounded, and its bottom is raised by base-rib 6 above ange 5 ofwall-section B to give a space or clearancevabove shoulder 7o 3 for theuplifting of said wall-sections when for any reason any one of them reuires removal. Each section B is incline inward in respect to wall 2 toform a fire-pot of less diameter at its bottom than at its top and isgradually spaced apart from wall 2 from top to bottom to give thegreatest spacebetween said parts at the bottom, where airis late, widerbetween its sides at its top than at its bottom, and when all the platesare in place within pot A they are firmly locked together, because oftheir abutting edge rel ationsh ip. ther interloeked and held in fixedposition in respect to each other and to wall 2 by rearwardly anddownwardly extending lugs 9, integral with the bottom corner of each`admitteid andfallingwashes dro thm g.

Each section B is in the form of a curve Said sections or plates arefur- S 5 section, and which are adapted to seat within 9o ears or loops1() on the bottom inner side of wallZ. Each ear or loop 1( seats tv'-1gs 9, one on each adjoining section B.

i The circular air-chamber 12, formed between walls 2. andsection-plates B, provides 9 5 for a free circulation of air about theentire pot from top to bottom and protects the parts from overheatingand burning out. Numerous openin s 13 at different elevations in eachplate B a( mit the air to the interior of the pot, and the niformdistribution of air thus provided prevents the pot from crackinr andgives a uniform iiringof the fuel and an even mixture of the air withthe gases. The heating of the air within cham-V ber 12 also contributesto promote complete combustion. Openings 13 arefunnel-shaped, with theirlargest end open to chamber 12 to promote an upw ardly-inclined flow ofair and to ive free clearance for ashes and cinders whlch may workthrough from the interior of the pot.

IOO

IIO

Water-section C vis hollow and has a partition-wall 15 at one point inits circumference and at one side of which I connect an intake-pipe 16and at the other side a'discharge-pipe 17, thus requiring the water toflow around the entire circle before discharging. Said inlet and outletpipes may be located at any side or radial oint of the stove or furnace,as C is rotatably mounted upon pot A. This is of'advantage in makingpipe connections.

Flange 5 stiffens sections B at their top and revents warping thereof.

hat I claim is'- i. A fire-pot for furnaces comprising an outer wallhaving a rabbeted top ledge inside, in combination an inner wallconstructed of sections having' vertical edges resting one against theother and provided with rearward flanges at their top engaged upon saidledge, and said sections interlocked at their lower ends with the rearwall and apart therefrom.

2. A fire-pot for furnaces comprising an outer wall and a sectionalinner wall, said outer wall constructed at its to to rest the inner wallthereon and provi ed with inwardly-extending projections at its bottom7and the inner wall provided with lugs at its bottom seated in saidprojections.

3. A fire-pot for furnaces and stoves comprising a circular outer wall,and an inner wall formed of separately-removable sections, said sectionswidest at their top and arranged edge to edge, and each section havingseparate engagement at both ends with said outer wall and perforatedbetween its ends.

4. A fire-pot for furnaces and stoves comprising an outer wall having ashoulder about its top and projections at itsbottom, and a series ofseparately-removable perforated-inner-wall sections having each a angeat its top adapted to rest on said shoulders and bottom lugs on the rearthereof adapted to interlock with said projections.

' 5. A fire-pot for furnaces and stoves consisting of anv outer wall,and an inner wall com rising a series of sections having rear- Warproections at their top adapted to rest u on sai outer wall, and theouter wall provided with projections inside at its bottom,

Aand said inner sections having lugs adapted to seat from above m saidprojections, said projections being located on the lines between saidsections.

6. A circular fire-pot for furnaces and stoves comprising an outer Wallhaving a top ledge and an inner'wall constructed of separatesectionshaving flanges adapted to rest upon said ledge, in combinationwith a water section adapted to. rest upon said outer wall and overlapsaid anges and s aced apart therefrom to permit removal o said inner-Wall sections.

7. A fire-pot for furnaces and stoves consisting of an outer wall, andan inner wall of removable sections s aced apart therefrom and supportedat botii top and bottom from said outer Wall, in combination with awatersection adapted'to rest on saidouter wall and spaced aparttherefrom upon its inner side and bottom to permit removal of the innersections.

In testimony whereof I sign this specifica-- tion in the presence of twowitnesses.

` JOHN I. KOLLA. Witnesses:

R. B. MOSER, G. H. LANDWEHR.

